Desa Tech B26TT is a portable construction heater designed for temporary heating of buildings under construction, alteration, or repair. It's a high-pressure propane appliance that can be connected to a bulk propane cylinder (not included). The heater features:

• Adjustable heat output: It has three heat settings (Hi, Med, Lo) to provide different levels of heating.
• Automatic safety shutoff valves: These valves stop the gas flow to a heater burner if it fails to operate, ensuring safety.
• Hi-Med-Lo control valve/regulator: This valve provides maximum safety and convenience, allowing you to adjust the gas flow for optimal heating.